Railroad-spike.



Winesses: Inventor:

5 .Paul Szydowski,

u MM. by

PAUL $ZYDLOWSKL OF BOSTON, MASSACHUSETTS.

RAILROAD-SPIKE.

To all who/nt it may concc'rn:

Be it known that I, PAUL Szynnowsiu, a. subject of theEmperor of Prussia, and a resident of Boston, in the county of Suffolk and Commonwealth of Massachusetts, have invented certain new and useful Improvements in Ralroad-Spikes, of which the following is a specification.

This inVentio-n relates to improveinents in spikes adapted for use particularly for securing rails to cross ties in the construction of railroads.

The invention consists in a two-part spike one part of which is longer than the other, the shorter member being U-shaped, while the longer member is provided with a central rib adapted to be inserted between the side portions of the shorter member, said rib having its lower end inclined and adapted to bear upon the connectingl portion of said shorter member and force it ,outwardly when the longer member is driven relatively thereto.

The invention further consists in providing the lower end of the U-shaped memberl with sharp Cutting edges inclined inwardly from the outer faces of said member, these cutting edoes being adapted to cut into the tie when forced out of alinement with the body portion thereof by the action of the wedge or inclined portion of the longer member on 'the lower end of the shorter member.

The invention further consists in certain novel features of construction and arrangement of parts which will be fully understood by reference to the description of the drawings and to the claims hereinafter given.

Of the dra-wings: Figure 1 represents a section through a rail and a portion of a tie and showing two spikes in elevation securing the rail to the tie, said spikes embodying the features of the present invention, the Cutting plane being on line 1--1 on Fig. 2. Fig. 2 represents a Vertical section of the same, the Cutting plane being on line 2-2 on Fig. 1. Fig. 3 represents an elevat'ion of the shorter member of the spike. Fig. 4: represents a Vertical section of the same, the Cutting plane being on line 4- 1 on Fig. 3. Fig. 5 represents a side elevation of the longer member, and Fig. 6 represents a front elevation of the same.

specification of Letters Patent.

Application filed May 19, 1913. Serial No. 768,667.

Patented May 12, 1914.

Similar characters designate like parts throughout the several figures of the drawings.

In the drawings, 10 reprcsents a tie and 11 a rail adapted to be secured thereto by means of spikes 12.` Each spike 12 consists of a shorter U-shaped member 13 having heads 111 at the upper end thereof while the lower end is connected by the portion 15.

The front edges of the lower portion of the member 13 are inclinecl inwardly as at 10 forming sharp Cutting edges as indicated in Figs. 3 and 11 of the drawings. l'n the space 17 between the side portions of the member 13 is positioned a central rib 18 of the longer member 19 which is T-shape in cross section. The body portion of the member 10 bears against the rear face of the member 13. The lower end of the member 19 is provided with a sharp edge to facilitate its being driven into the tie. The lower end of the rib 18 is inelined and normally bears against the rear face of the connecting portion 15.

The front face of the rib 18 is provided with a locking notch 20 into which the rear face of the connect'ing portion is adapted to engage to prevent the removal of the spike 12 when driven. In the use of the spike holes are first bored into the tie at the proper points and the U-shaped member 13 is inserted therein and surrounded with wax or some other wood prcservati've. The longer member 19 then driven into the opening with the body portion bearing againstthe rear face of the member 13 and the rib 18 positioned in the central space 17. As the i'nclined portion 18X is foreed downwardly in contact with the rear face of the connecting portions 15, the lower end of the U-shaped member 13 will be forced out of alinement with the body portion thcreof, and the sharp Cutting edges 1G on the front face will bo driven into the tie as indicated in Fig. 1 of the drawings. lVhen the head 20X of the member 19 comes into contact with the upper face of the head 1-1 the connecting portion 15 will engage with the noteh 20 in the hub 18, thercby preventing the accidental displacement of the spike. This forms a very efectual means of securing the rails to the ties, the two-part spike when once driven effectually preventing any movement of the rail 11 relative to the tie member and having an inclined lower end e when moved relatively to said member to owin to the fact that the spikes are securely lockec in position so that their displacement is etfectnally prevented.

lt is believed that the many advantages of this invention will be fully apparent from the foregoing description.

Having' thus described my invention, I claim:

l. In a spike, the combination of a headed U-shaped member having-its lower end provided with sharp edges in one face; and a headed member bearing against the opposite face of said member and provided with a central rib positioned within said U-shaped adapted when moved relatively to said member to force said sharp e'dges ontwardly.

2. In a spike, the combination of a headed U-shaped member having its lower end provided with sharp edges in one face; a headed member bearing against the opposite face of said member and provided with a central rib positioned within said U-shaped member and having an inclined lower end adapted force said sharp edges outwardly; and a looking notch in the edge of said rib.

3. In a spike, the combination of a headed U-shaped member having its lower end in one face provided with sharp edges Curved inwardly from the outer walls; and a plate bearing against the oppositeface of saidI noce-,408

member provided with a rib disposed therein having an inolined edgeV adapted when moved relatively to said member to force said sharp edges outwardly.

4-. In a spike, the combination of a headed U-shaped member having its lower end in one face provided with sharp edges curved inwardly from the onter walls; and a plate of greater length than said member bearing against the opposite face thereof provided with a rib disposed therein having an inclined edge adapted when moved relatively to said member to force said sharp edges outwardly.

5. In a spike, the combination of two members of difierent lengths, the shorter member being constructed of two side members with a connection at the bottom, and the longer member being formed T shape in cross section with the central rib interposed between said side members and having an inclined portion adapted to bear against said connection and when moved relatively thereto to force the lower end of the shorter member out of alinement with the body thereof.

Signed by me at 4 Post Ofiice Sq., Boston,

` Mass., this 16th day of May, 1913.

PAUL SZYDLOWSKI. lVitnesses:

VVALTER E. LOMBARD, NATHAN C. LOMBARD.

Copies of this patent: may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0. 

